Shido Global Hack

TOTAL LOST $235K
Low Other

Summarize with AI

ChatGPT Perplexity Claude Grok
Affected Chain 2023 Incident surface
Recovered - No recovery reported
All-Time Rank #1242 By amount stolen
Protocol Type Exploit/Other Target category

Incident Overview

Quick Summary

Shido Global was exploited due to a smart contract configuration error, resulting in a loss of 235,458 $USD.

Details of the Exploit

Shido Global, a Cosmos-based blockchain with EVM compatibility, was exploited due to a configuration error in the lock and claim mechanism, as well as the price difference between their old and new token pools in PancakeSwap. The attacker initially took a flash loan of 40 $BNB and swapped it to obtain a large amount of Shido tokens. Then, the attacker exploited a flaw in the ShidoLock contract that allowed them to convert v1 tokens to v2 tokens at a large scale.

Finally, the exploiter swapped these tokens for 1,016 WBNB, repaid the flash loan, and made away with a profit of roughly 977 $BNB which is worth $235,458 USD. The stolen funds were transferred through Celer Bridge.

Block Data Reference

Attacker Address:

https://bscscan.com/address/0x69810917…61770d

Malicious Contract Address:

https://bscscan.com/address/0xcdb3d057…9ea4cc

Malicious Transaction:

https://bscscan.com/tx/0x72f8dd2b…a712d6

Bridging Transactions:

https://bscscan.com/tx/0x2de117d3…c8c99f

https://bscscan.com/tx/0x2a1b7601…cc69bb

Incident Report

Protocol / Project Shido Global
Date of Incident
Attack Technique Other
Classification Other
Primary Source View Post-Mortem #1 View Post-Mortem #2 View Post-Mortem #3

Protocol Information

Protocol Type Exploit/Other
Affected Token SHIDO
Official Website shido.io/
Protocol Twitter/X @ShidoGlobal
Team Anonymous
Source Code Verified On-Chain

What the Attacker Needed to Succeed

Understanding the prerequisites for this type of attack helps auditors identify protocols that are most at risk and helps developers build better defenses.

Technical Knowledge Deep understanding of other and Solidity and EVM internals
Capital Required Seed capital to cover gas and initial position setup
On-Chain Access Ability to interact with smart contracts and deploy a custom exploit contract
Protocol Analysis Identification of the exploitable vulnerability in Shido Global's contract logic - root cause: other
Execution Speed Precise transaction ordering and timing to exploit the vulnerability within a single atomic block
Obfuscation Plan A strategy to launder and move stolen funds - typically through mixers, cross-chain bridges, or decentralized DEX swaps to resist tracing

What Auditors Should Check

Could this have been caught in audit? Likely — with a thorough Other audit checklist and test coverage

If you're auditing a protocol with similar architecture to Shido Global, these are the critical security checks that could have prevented this incident (June 2023).

  • Verify all logic paths related to Other are guarded by proper access controls and input validation
  • Review privileged functions (owner, admin, governance) for potential abuse vectors - centralization risks should be documented and bounded with timelocks or multi-sigs

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Sources & References

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